<?php
/**
 * Copyright (c) Enalean, 2017 - 2018. All Rights Reserved.
 *
 * Tuleap is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Tuleap is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Tuleap; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

namespace Tuleap\Tracker\Report\Query\Advanced\InvalidFields\Date;

use Tracker_FormElement_Field;
use Tuleap\Tracker\Report\Query\Advanced\Grammar\Comparison;
use Tuleap\Tracker\Report\Query\Advanced\InvalidFields\InvalidFieldChecker;
use Tuleap\Tracker\Report\Query\Advanced\InvalidFields\InvalidFieldException;

class DateFieldChecker implements InvalidFieldChecker
{
    /**
     * @var CollectionOfDateValuesExtractor
     */
    private $values_extractor;

    /**
     * @var DateFormatValidator
     */
    private $validator;

    public function __construct(DateFormatValidator $validator, CollectionOfDateValuesExtractor $values_extractor)
    {
        $this->validator        = $validator;
        $this->values_extractor = $values_extractor;
    }

    /**
     * @param Comparison $comparison
     * @param Tracker_FormElement_Field $field
     * @throws InvalidFieldException
     */
    public function checkFieldIsValidForComparison(Comparison $comparison, Tracker_FormElement_Field $field)
    {
        $date_values = $this->values_extractor->extractCollectionOfValues($comparison->getValueWrapper(), $field);

        foreach ($date_values as $value) {
            try {
                $this->validator->checkValueIsValid($value);
            } catch (DateToEmptyStringException $exception) {
                throw new DateToEmptyStringComparisonException($comparison, $field);
            } catch (DateToStringException $exception) {
                throw new DateToStringComparisonException($field, $value);
            }
        }
    }
}
